Iterate through all CEA data blocks, not just the first CEA extension.
Signed-off-by: Jani Nikula jani.nikula@intel.com --- drivers/gpu/drm/drm_edid.c | 25 +++++++++++-------------- 1 file changed, 11 insertions(+), 14 deletions(-)
diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c index e341790521d6..399e69dc1aed 100644 --- a/drivers/gpu/drm/drm_edid.c +++ b/drivers/gpu/drm/drm_edid.c @@ -4978,27 +4978,24 @@ EXPORT_SYMBOL(drm_av_sync_delay); */ bool drm_detect_hdmi_monitor(struct edid *edid) { - const u8 *edid_ext; - int i; - int start_offset, end_offset; - - edid_ext = drm_find_cea_extension(edid); - if (!edid_ext) - return false; - - if (cea_db_offsets(edid_ext, &start_offset, &end_offset)) - return false; + const struct cea_db *db; + struct cea_db_iter iter; + bool hdmi = false;
/* * Because HDMI identifier is in Vendor Specific Block, * search it from all data blocks of CEA extension. */ - for_each_cea_db(edid_ext, i, start_offset, end_offset) { - if (cea_db_is_hdmi_vsdb(&edid_ext[i])) - return true; + cea_db_iter_edid_begin(edid, &iter); + cea_db_iter_for_each(db, &iter) { + if (cea_db_is_hdmi_vsdb(db)) { + hdmi = true; + break; + } } + cea_db_iter_end(&iter);
- return false; + return hdmi; } EXPORT_SYMBOL(drm_detect_hdmi_monitor);